/**
 * 
 */
package org.swing.utility.jdbc.backend;

import java.util.Collection;

/**
 * @author lqnhu
 *
 */
public interface Backend {
	public interface Identity {
	}

	public interface Column {
	}

	Object get(Identity id, Column col) throws Exception;

	void set(Identity id, Column col, Object value) throws Exception;

	Collection<Identity> find(Column[] cols, Object[] args) throws Exception;
}
